Looking for a moist or infrared heating pad for arthritis/muscle spasms/cervicalgia in neck, pain that leads to head and shoulders, sometimes arms. Was told to use heat. What s the best heating pad out there for this with something that covers entire neck, where hurts most (guessing back of head pain starts from neck). I also need something scs friendly, as I didn t read far enough on amazon about a jade stone infrared one and probably would have been awesome but says not to use it with any type of implant. I m tired of researching and just know dry heat is horrible, help please